Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff16ae72da9d7ea4…

MALICIOUS

PDF

86.4 KB Created: 2021-03-25 15:53:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b4409b1862621f6dcdf0348958c728c3 SHA-1: b1419f4d62caa23ae63f1902c379e2948dd3f72c SHA-256: ff16ae72da9d7ea47cae0618ecb0c4d5674446163a541aced860cc66987d1ea7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://botokaw.ru/award?keyword=information+geometry+amari+pdf PDF link annotation
    • http://lg-copyrightforms.com/wolinadusamevosul0ihgg.pdfIn PDF document text
    • http://nalutomabesuso.iblogger.org/newogedikosefuligolezo.pdfIn PDF document text
    • http://litvinenko.xyz/62535595186mgoi8.pdfIn PDF document text
    • http://egrn-order.online/piada_de_ary_toledo_como_ou_elefantet56au.pdfIn PDF document text
    • http://mon-cmb.best/29962318201f97fh.pdfIn PDF document text
    • http://lifeshop.pro/xadobuzixofisarunewovoxoo4i1.pdfIn PDF document text
    • http://fubewakixodi.22web.org/83980782959.pdfIn PDF document text
    • http://prolac.ru/2311363034bap27.pdfIn PDF document text
    • https://cdn.sqhk.co/retirijozi/4vIjcjb/26813671273.pdfIn PDF document text
    • https://cdn.sqhk.co/fosuzonarefi/jbRoieC/dodge_challenger_2014_manual.pdfIn PDF document text
    • http://roxifij.22web.org/helping_verb_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/sevidekepige/wgdidZD/52184519304.pdfIn PDF document text
    • https://cdn.sqhk.co/joxesinejag/FidQuj9/dragon_kingdom_2018_wikipedia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dibedamoka/mapilemosisexifugax.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/vizisinadomup.pdfIn PDF document text
    • http://gotuziput.epizy.com/slavery_and_the_cotton_gin_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/96209693209.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/avg_antivirus_windows_7_32_bit.pdfIn PDF document text
    • http://japusorusepex.rf.gd/5823695692.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/dj_techtools_midi_fighter_twister_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/33613182433.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/katiwutow.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/corrective_and_preventive_action_report_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/guzipiwaxofof.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3E 4980 bytes
SHA-256: 2d915ad50f911ac8b7e6cf8dfced51392814f49c34fb8cbdbe59e172ef5c1ab3
font_01_sfnt_off0001000f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000F 12336 bytes
SHA-256: 2360da01f64660d008fd6b1102fce02196c7aad27f155073cca7d3864c3a6553
font_02_sfnt_off000127dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127DC 16264 bytes
SHA-256: 08b2862b9b54eca4ada1982d14b89df3ffdf10838e46dacfabd19c5f115c647f
font_03_sfnt_off00013d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D62 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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